LAN
LAN (Local Area Network) à»ç¹ÅѡɳСÒÃàª×èÍÁµèÍà¤Ã×Í¢èÒ¤ÍÁ¾ÔÇàµÍÃì¶Ö§¡Ñ¹ÀÒÂã¹¾×é¹·Õèã¡Åé æ ¡Ñ¹ à¤Ã×Í¢èÒ LAN Í͡ẺÁÒà¾×èÍãËéºÃÔ¡ÒÃáÅ¡à»ÅÕè¹¢èÒÇÊÒáѹã¹ÊèǹµèÒ§æ¢Í§Í§¤ì¡Ã㹺ÃÔàdz·ÕèäÁèä¡Å¡Ñ¹ÁÒ¡ àªè¹ÍÂÙèã¹ÍÒ¤ÒÃà´ÕÂǡѹ ÃÐËÇèÒ§ªÑé¹ÍÒ¤Òà ÊÒÁÒö´ÙáÅä´éàͧâ´ÂäÁèµéͧãªéÃкºÊ×èÍÊÒâéÍÁÙÅẺÍ×è¹ ¡ÒÃàª×èÍÁâ§à¤Ã×Í¢èÒ LAN ÁÕ 4 ÃٻẺ´Ñ§¹Õé
1. Ethernet LAN ÁÕ¡ÒÃÃѺÊ觢éÍÁÙÅ´éǤÇÒÁàÃçÇ 10-1000 Mbps. ãªé¾×é¹°Ò¹ Topology ẺºÑÊ â´ÂÍØ»¡Ã³ì·Ø¡ÍÂèÒ§¨Ðàª×èÍÁµè͡ѹº¹ÊÒÂÊÑÒ³àÊé¹à´ÕÂÇ â´ÂµéͧÁÕ¡ÒèѴ¡ÒÃàÃ×èͧ¡ÒÃÊ×èÍÊÒÃäÁèãËéÃѺÊ觾ÃéÍÁ¡Ñ¹à¡Ô¹¡ÇèÒ˹Ö觤Ùè â´ÂãËéÍØ»¡Ã³ì·Õè¨ÐÊ觢éÍÁÙŵÃǨÊͺÇèÒÁÕ¢éÍÁÙÅã´ÇÔè§ÍÂÙ躹ÊÒÂËÃ×ÍäÁè ËÒ¡äÁèÁÕ¨Ö§Êè§ä´é áÅжéÒÁÕ¡Ò깡ѹ¢Í§¢éÍÁÙź¹ÊÒ¡ç¨ÐÊè§ãËÁè
2. Token Ring ÁÕ¤ÇÒÁàÃçÇ 16 Mbps àª×èÍÁµè͡ѹà»ç¹Ç§áËǹâ´Âá¾ç¡à¡¨¢éÍÁÙŨÐÇÔè§Ç¹ã¹·Ôȷҧ㴷ҧ˹Öè§ ¶éÒ·ÃÒºáÍ´à´ÃÊ»ÅÒ·ҧáÅéÇ Token ¨Ð¶Ù¡ÃкØÇèÒ»ÅÒ·ҧÍÂÙèä˹ Token ¨Ð¶Ù¡Êè§ä»àÅÂ樹à¨Í»ÅÒ·ҧ áÅéÇ Token ¨Ð¶Ù¡»ÅèÍÂà¾×èÍãËé¼ÙéÍ×è¹ãªéµèÍä» ÍØ»¡Ã³ì¹Ñ鹨ÐÃѺ¢éÍÁÙÅä» ¡ÒèѴ¡ÒÃÃѺÊ觢éÍÁÙÅã¹Ç§áËǹ¨Ö§à»ç¹ä»ÍÂèÒ§ÁÕÃÐàºÕº
3. ARCNET à»ç¹à·¤â¹âÅÂÕ·Õèãªé Token-bus 㹡ÒèѴ¡Òà line sharing ÃÐËÇèÒ§à¤Ã×èͧÅÙ¡¢èÒÂáÅÐÍØ»¡ÃÍ×è¹æ à¤Ã×èͧáÁè¢èÒ¨ÐÊè§à¿ÃÁ¢éͤÇÒÁà»ÅèÒ仵ÒÁ Bus àÁ×èÍÍØ»¡Ã³ìµéͧ¡ÒèÐÊ觢éÍÁÙÅ¡ç¨ÐãÊè Token ä»´éÇ ã¹à¿ÃÁ¢éÍÁÙÅà»ÅèҨзÕè½Ò¡¢éÍÁÙÅä»´éÇ àÁ×èÍÍØ»¡Ã³ì¨Ø´ËÁÒÂä´éÃѺ¡çãÊè Token à»ç¹ 0 ŧä»á·¹ à¿ÃÁ¹Ñ鹡ç¨Ð¾ÃéÍÁ¹Ó¡ÅѺÁÒãªéä´é ãËÁè
4. FDDI (Fiber Distributed Data Interface) ·Ó§Ò¹º¹ÊÒ Fiber Optic ·Ó§Ò¹ä´éÃÐÂÐä¡Å¶Ö§ 200 ¡ÔâÅàÁµÃ ãªé Protocol ¢Í§ Token Ring â´Â¨ÐÁÕ Token Ring «é͹¡Ñ¹ 2 ǧ à»ç¹ Back up ¡Ñ¹áÅСѹãËéºÃÔ¡ÒÃä´é¶Ö§ 100 Mbps
ÍØ»¡Ã³ìã¹Ãкºà¤Ã×Í¢èÒ LAN
1. LAN Card
¤×Í Card ·Õè¨ÐµÔ´µÑé§ÀÒÂã¹à¤Ã×èͧ PC ÊèǹãËè¨ÐÁÕ¢¹Ò´àÅç¡ à·èҡѺ VGA Card ËÃ×Í Sound Card ÊÓËÃѺ LAN Card Âѧáºè§ÍÍ¡ä´éËÅÒ»ÃÐàÀ· ·Ñ駹Õé¢Ö鹡Ѻ¤ÇÒÁàÃçÇ·Õèµéͧ¡Òà àªè¹ 10 Mbps, 10/100 Mbps, 100 Mbps à»ç¹µé¹
2. LAN Cable
¤×ÍÊÒÂÊÑÒ³·ÕèÁÕÅѡɳФÅéÒÂÊÒÂâ·ÃÈѾ·ì ·Õè¹ÔÂÁãªéÁմѧ¹Õé UTB, STB «Ö觡ÒÃàÅ×Í¡ÊÒÂáµèÅлÃÐàÀ·¹Õé¨Ð¢Ö鹡Ѻ¡ÒÃ¹Ó ä»ãªé àªè¹ µÔ´µÑé§ÀÒÂã¹ ÀÒ¹͡ ËÃ×ÍÃÐÂзҧä¡Åá¤èä˹ à»ç¹µé¹
3. HUB
¤×ÍÍØ»¡Ã³ì·Õãªéà»ç¹¨Ø´ÈÙ¹Âì¡Åҧ㹡ÒáÃШÒÂÊÑÒ³ ËÃ×Í¢éÍÁÙÅ â´Â»¡µÔ¡ÒÃàÅ×Í¡ Hub ¨Ð´Ù·Õè¨Ó¹Ç¹ Port ·Õèµéͧ¡Òà àªè¹ 8 ports, 12 ports, 24 ports
